在一定空气状态下，当物料表面产生的水蒸气压与空气中水蒸气分压相等时，物料中所含水分称( )
A. 游离水分
B. 结合水分
C. 自由水分
D. 平衡水分
E. 非结合水分
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下列药物中，哪味药采用先炒后拌盐水的方法( )
A. 补骨脂
B. 益智仁
C. 车前子
D. 续断
E. 杜仲
We had a long meeting yesterday. It ______ four hours.
A. kept
B. spent
C. continued
D. lasted
He is suspicious about her motivation to attend the party.
A. sure
B. angry
C. doubtful
D. worded
Dr. Dorothy is ______.
A. an environmental program manager of Greece
B. a Greek official in charge of the construction
C. a scholar opposing the construction of the sports complex
D. a scholar in support of the Construction of the sports complex
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